#!/bin/bash
# date: Mon Aug  1 14:55:11 CST 2022
# author: xxr
function echoHello(){
  echo "hello"
  echo  "$1"
  echo  "$2"
  echo  "传入参数的个数: $#"
  echo "传入的所有参数: $*"
}

echoHello a b c d 
